Re: [O] [bug] latex fragment preview with dvipng ignores :foreground specification

[Nick Dokos]

Eric S Fraga <address@hidden> wrote:

> Hello,
> 
> I am trying to use org-tree-slide for an interactive session I have to
> facilitate soon.  This works quite well, in a geeky kind of way ;-)
> 
> However, I do want to display a couple of equations and using latex
> fragments is the most appealing mechanism.  When I try to use
> org-preview-latex-fragment, the latex image is
> generated.  Unfortunately, as I use a black background on my display, I
> cannot see the fragment as it is being generated with black text on a
> transparent background by default.  Note, I am using dvipng for the
> image conversion.
> 

I tried the imagemagick setting, set the options variable to black background
and red foreground - lo and behold, that's what I get in the preview.

Nick

> I can customise org-format-latex-options to fix this, or so I
> thought.  No matter what I do, the resulting latex fragment has black
> text.  The problem appears to be that the -fg option to dvipng does not
> work so it doesn't matter how I customise org-format-latex-options.
> 
> Can anybody suggest a workaround (without changing the actual latex
> itself)?  I can customise the above variable to set the background for
> latex images to white, which at least allows the equations to be seen,
> but this is a mildly ugly solution.  :( And ruins any geek street cred I
> might have had ;-)
> 
> Thanks,
> eric
> 
> -- 
> : Eric S Fraga, GnuPG: 0xC89193D8FFFCF67D
> : in Emacs 24.3.50.1 and Org release_7.9.3d-874-gf11acc
> 
>